Complete .block Virus Removal Guide (Full Instructions)

An infection with the dangerous .block Virus leads to serious security issues. Victims can restore and protect their computers by following our complete removal guide.

Remove .block Virus and Restore PC
Manual Removal Guide
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Distribution of .block Virus

The .block Virus is a new virus which has been sighted in attack campaign. At the moment the security researchers cannot determine the primary infection strategy. We presume that the most widely used tactics are going to be employed.

Among them are the email messages created in an automated way and sent to large lists of potential victims. The .block Virus can be directly attached to the messages. This is one of the easiest way for the criminals to attempt the infection. However a lot of email hosting providers usually capture the signatures of the virus and as such discard such messages or label them as dangerous or spam. Other infection methods related to this one is the option of inserting hyperlinks in the body content of the messages. The links are usually labeled as leading to a familiar website or a file of user interest. Redirects can redirect to hacker-controlled sites, infected payloads or other instances that can lead to an .block Virus infection.

The computer criminals behind the malware can create malicious sites or download portals which distribute malware of different kinds, including the .block Virus. A popular option is the use of infected documents which may be of different types ‒ spreadsheets, rich text documents, presentations and databases. They are modified to initiate the virus once the built-in scripts are run. Usually when the files are opened a notification will ask the users to run the macros (scripts). If this is done the infection follows.

The hacker-controlled sites are specialist portals that have been created either manually or automatically by the criminals behind the .block Virus. They can either directly distribute the threat by initiating various scripts or automated operations or link to such instances. Redirects are usually caused by email interaction, ad networks or other browsing activity. However one of the main sources is the availability of browser hijackers. They are malicious addons made for the most popular web browsers ‒ Mozilla Firefox, Google Chrome, Internet Explorer, Opera, Microsoft Edge and Safari. Once installed they not only infect the users with the malware, but also redirect the victims to a hacker-controlled site. Depending on the configuration the browser hijackers can also steal sensitive information such as any stored passwords, account credentials, history, bookmarks, form data and settings.

Impact of .block Virus

The .block virus is one of the latest strains associated with the Dharma ransomware family. The security reports shows that it uses the same modular framework as all of the similar strains. This makes it highly unpredictable as it may create a lot of signatures depending on the individual behavior patterns which can differ between the infected hosts.

At the onset of infections the .block virus starts by extracting sensitive information about the system. This is used to in order to generate a profile of the victims. The data consists of the following: anonymous metrics, system hardware components and software configuration. Personal data can be retrieved both from the operating system and the installed applications. An often-given example is the web browser. Malware samples like this one are usually made compatible with the most popular ones: Mozilla Firefox, Google Chrome, Internet Explorer, Microsfot Edge, Safari and Opera. Once accessed the operators can retrieve all stored contents including the cookies, bookmarks, history, passwords and account credentials.

The next step would be to report the gathered information to the hackers. The .block virus may include a separate module that can connect to C&C (command and control) servers. It may also be used to institute a Trojan module which can be used to spy on the victims in real time. It can also take over control of the victim machines at any given time.

The security analysts note that it most of the advanced threats like this one create a persistent state of execution. It is able to counter any manual user removal attempts. Furthermore it can also delete the found shadow volume copies of the victim data. This prevents data recovery without the use of a professional-grade data recovery solution. The hackers can also bundle malware code that interacts with the Windows volume manager thereby granting access to all removable storage device and available network shares.

As the .block virus can access virtually all parts of the operating system it can cause dangerous system changes. The list includes the Windows registry and the relevant operating system configuration files. As a result the victims may experience performance issues or find that some applications and service may stop working correctly or are altogether disabled. Such infections also allow the hackers to deliver other threats by using the .block virus as a intermediate payload delvery mechanism.

Once all preliminary tasks have executed correctly the .block virus proceeds by launching the ransomware process. Like its parent the ransomware engine targets the most widely used user data: archives, documents, backups, music, videos, images and etc. All victims files are renamed using the pattern — [hacker’s contact email address].block. The ransomware note itself is created in a file called FILES ENCRYPTED: Bloc de notas.txt that contains the following text:

all your data has been locked us
You want to return?
write email decrypt.guarantee@aol.com

Remove .block Virus and Restore PC

WARNING! Manual removal of the .block Virus requires being familiar with system files and registries. Removing important data accidentally can lead to permanent system damage. If you don’t feel comfortable with manual instructions, download a powerful anti-malware tool that will scan your system for malware and clean it safely for you.

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SpyHunter anti-malware tool will diagnose all current threats on the computer. By purchasing the full version, you will be able to remove all malware threats instantly. Additional information about SpyHunter / Help to uninstall SpyHunter

.block Virus – Manual Removal Steps

Start the PC in Safe Mode with Network

This will isolate all files and objects created by the ransomware so they will be removed efficiently. The steps bellow are applicable to all Windows versions.

1. Hit the WIN Key + R

2. A Run window will appear. In it, write msconfig and then press Enter

3. A Configuration box shall appear. In it Choose the tab named Boot

4. Mark Safe Boot option and then go to Network under it to tick it too

5. Apply -> OK

Remove .block from Windows

Here’s a way to remove the program. This method will work regardless if you’re on Windows 10, 8, 7, Vista or XP. Simply selecting the program and pressing delete won’t work, as it’ll leave a lot of small files. That’s bad because these leftovers can linger on and cause all sorts of problems. The best way to delete a program is to uninstall it. Here’s how you can do that:

1. Hold the “Windows” button (It’s between CTRL and Alt on most keyboards) and press “R”. You’ll see a pop-up window.

2. In the textbox, type “appwiz.cpl”, then press“ Enter ”.

3. The “Programs and features” menu should now appear. It’s a list of all the programs installed on the PC. Here you can find the program, select it, and press “Uninstall“.

Remove .block Virus From Your Browser

Before resetting your browser’s settings, you should know that this action will wipe out all your recorded usernames, passwords, and other types of data. Make sure to save them in some way.

Removal guide for Mozilla Firefox Removal guide for Google Chrome Removal guide for Internet Explorer

    1. Start Mozilla Firefox. In the upper right corner, click on the Open menu icon and select “Add-ons“.

    2. Inside the Add-ons Manager select “Extensions“. Search the list of extensions for suspicious entries. If you find any, select them and click “Remove“.

    3. Click again on the Open menu icon, then click “Options“.

    4. In the Options window, under “General” tab, click “Restore to Default“.

    5. Select “Search” in the left menu, mark the unknown search engine and press “Remove”.

    1. Start Google Chrome. On the upper-right corner, there a “Customize and Control” menu icon. Click on it, then click on “Settings“.

    2. Click “Extensions” in the left menu. Then click on the trash bin icon to remove the suspicious extension.

    3. Again in the left menu, under Chrome, Click on “Settings“. Go under “On Startup” and set a new page.

    4. Afterward, scroll down to “Search“, click on “Manage search engines“.

    5. In the default search settings list, find the unknown search engine and click on “X“. Then select your search engine of choice and click “Make default“. When you are ready click “Done” button in the right bottom corner.

1. Start Internet Explorer. Go to the “Tools” menu and click on “Manage add-ons“.

2. In the “Manage add-ons” window, bellow “Add-on Types“, select “Toolbars and Extensions“. If you see a suspicious toolbar, select it and click “Remove“.

3. Then again in the “Manage Add-ons” window, in “Add-on Types“, Select “Search Providers“. Chose a search engine and click “Set as default“. Select the unknown search engine and click “Remove and Close”.

4. Open the Tools menu, select “Internet Options”.

5. In the “General” tab, in “Home page”, enter your preferred page. Click “Apply” and “OK”.

Repair Windows Registry

1. Again type simultaneously the WIN Key + R key combination

2. In the box, write regedit and hit Enter

3. Type the CTRL+ F and then write the malicious name in the search type field to locate the malicious executable

4. In case you have discovered registry keys and values related to the name, you should delete them, but be careful not to delete legitimate keys

Click for more information about Windows Registry and further repair help

Preventive Security Measures

  • Enable and properly configure your Firewall.
  • Install and maintain reliable anti-malware software.
  • Secure your web browser.
  • Check regularly for available software updates and apply them.
  • Disable macros in Office documents.
  • Use strong passwords.
  • Don’t open attachments or click on links unless you’re certain they’re safe.
  • Backup regularly your data.
  • Author : Martin Beltov

    Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.


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